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ISDN gateway event types
Currently the ISDN gateway CDRs support the event types listed in the table below. They are listed in
the order that they occur in the CDR.
Event type
new_connection
connection_proceeding
multiway_call_transfer
connection_finished
The tables in the sections below show the parameters for each event type in the order in which they
appear in the CDR. There is an explanation for each parameter.
new_connection
This event is seen when a call starts.
Section
Name
<connection>
unique_id
<call>
direction
calling_number
original_called_number
<isdn>
call_type
max_call_duration
Call Detail Record File Format Reference Guide
Description
A new connection is initiated
Appears whenever:
- the call has been connected
- a downspeeding event occurs. (Downspeding is a technique that limits
the bandwidth used by a video conferencing unit to the maximum
specified by the gatekeeper)
- a channel is added in an aggregation call
An H.323 call leg is transferred to a multiway conference
A connection is closed. The reason is provided within the event detail
Description
Unique identifier for the connection in the format
nnnnnnnn. This is generated automatically by the
ISDN gateway
Either ip to isdn or isdn to ip
For IP to ISDN calls, the H.323 alias or E.164 number
of the IP endpoint. For ISDN to IP calls, the E.164
number of the ISDN endpoint or ISDN if number is
unknown
The E.164 number that was originally dialed by the
calling endpoint, or <none> if an IP endpoint calls the
ISDN gateway by its IP address
One of:
bonding (Video using bonding)
voice (Telephone)
h221 aggregation (Video using N x 64 kbps)
Either <no time limit> or a number of seconds
ISDN gateways
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